We are very proud of this motor and we want yours to give
you the bet possible service. Please read this Owner's Manual
in its entirety and follow our instructions to the best of your
ability. If you have any questions not covered here, please feel
free to call us at 501-646-1656.

SUITABLE MODELS:

This motor is suitable for radio control models calling for
motor sizes from 40 thru 60.

WARNING:

There is always the possibility you may lose control of your
model. Do not fly in any location where your model might strike
people or do property damage should this occur.

INSTALLATION:

Your FOX motor mounts in the normal manner. If your airplane
calls for a firewall mount, we recommend that it is very rigid.
If your airplane is designed with a hardwood beam type mount,
be sure they are well braced between the two beams, and the beams
are gusseted to the firewall, and, preferably, to one another.
Flimsy motor mounts will allow the engine to vibrate excessively
and may damage the model and cause foaming of the fuel tank.
Also, excessive vibration can cause glow plug failure. If a cowling
is used, provisions should be made for both air inlet and outlet.

PROPELLERS TO USE:

We recommend you always use a hardwood propeller. The sizes
shown are a good starting place. However, the essence of model
building is experimentation. So as you feel like experimenting,
try varying the pitch and diameter.

Large Model

Small Model

Fox 46

11 x 6

10 x 6

Plastic propellers are not recommended because if you should
accidentally get your hand in the propeller arc while running,
you will be hurt a lot worse. Wood propellers will usually break
before you are seriously hurt.

WARNING:

Always keep clear of the propeller. It is possible for a propeller
to cut off a finger or for a piece to dome off and put an eye
out.

FUELS TO USE:

The best model airplane fuels are a mixture of methanol, pure
castor oil and nitromethane to improve ignition, add power and
cut down carbon deposits. It is important to use only fuel with
a minimum of 17% castor oil lubricant, otherwise, your engine
life will be drastically reduced. Nitro's function is to "advance
the spark". To determine if you need any, or more nitro,
start your engine, open the throttle wide open and set your high
speed needle for maximum power, then back it out slightly. Do
all this with your booster battery connected. Now remove your
booster leads - if your motor slows down, more nitro is indicated.
Fox Gold Star (5% Nitro) and Duke's Fuel (10% Nitro) have castor
oil lubricant and should work satisfactorily.

WARNING:

Model airplane fuel is both flammable and extremely poisonous.
Use the same safety precautions you would use with a can of gasoline
or a bottle of poison.

GLOW PLUGS:

This motor uses the long thread glow plug. We recommend our
RC-Long because it gives a more reliable performance.

TO START YOUR MOTOR:

Mount your motor securely on a mount that does not put a strain
on the mounting legs. #4-40 screws are the size to use. The fuel
supply should be so positioned that the tank centerline is not
more than 1/4" below the fuel nipple. The fuel line should
not be higher than the fuel level at any point. Use medium size
fuel line.

This motor is supplied with our new E-Z carburetor.

All Fox E-Z carburetors are pre-set from the factory for easy
starting.

You may need to fine tune your engine to your own specifications.

To set high speed needle, screw in to bottom (do not over-tighten).
Then screw needle out three turns for starting point.

To set idle air adjustment screw, screw it in until point
of screw is midway of air inlet hole. To fine adjust idle, turn
screw in to richen and out to lean.

WARNING:

A model airplane motor can get hot enough to cause a serious
burn. Do not touch the motor after it has been running.

BREAK IN:

Your Fox 46 has been test run and should be bench run for
a minimum of 1 hour. If a test stand is not available, motor
can be broken in using a rich setting with short flights. Alternate
between low speed, 1/4-1/2 throttle, and 3/4 throttle at a rich
setting to allow all parts to seat properly. The idle, however,
will become more reliable as the motor accumulates running time.
When you install the muffler, it is important that both screws
be tightened tight. Do not over torque or you will strip the
threads. A bit of locktite on the threads isn't a bad idea either.

First - Remove from rest of model
Second - Wash under hot water faucet
Third - Remove plug and rear cover and wash in stoddard solvent
Fourth - Now check and if it turns over freely, it is probably
not hurt

OTHERWISE, PROCEED TO DISASSEMBLE:

To dis-assemble - remove head, rear cover and carburetor.
Lift out the cylinder liner, next slip the con rod off the crankpin.
The piston-rod-wrist pin assembly is not readily disassembled
in a home shop and we recommend they be sent to us if work on
these is required. Inspect all parts - discard any that appear
damaged or worn. New parts can be obtained directly from the
factory by calling (501) 646-1656 during business hours. When
re-assembling, use care to get the oil hole in the rod facing
the prop. If repairs are more than you want to handle and you
desire us to rebuild it for you, mail directly to us. We will
dis-assemble the motor, replace all necessary parts, test run
and return the motor to you charges collect. It has not proven
practical to make any sort of estimates. We will assure you,
however, that our charges will never be more than 50 percent
of the list price of a new motor.

Note: A die cast spinner, back plate and screw are included
with some models. The spinner back plate is designed to replace
the thrust washer. Sometimes, the thrust washer sticks rather
tightly on the taperlock. In this case, removal is accomplished
by wrapping the thrust washer with two or three wraps of masking
or similar tape. Then holding the motor with pliers around the
tape and rapping the end of the crank with a wood block.

WARNING:

Never fly a control line model within 200 feet of power lines.
Death by electrocution is possible if your model comes near a
power line. Direct contact is not necessary.

Be Quiet - Don't aggravate the neighbors if you wish to continue
enjoying your hobby. The muffler we supply reduces sound to an
acceptable level for most rural flying fields. However, if there
is any possibility that your model noise is aggravating someone,
we suggest you add our Quiet Muffler.